Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Valve Guide

Valve guide bore diameter 7.00-7.018 mm (0.276 inch)
Valve stem diameter-intake 6.965-6.98 mm (0.274-0.275 inch)
Valve stem diameter-exhaust 6.95-6.965 mm (0.27-0.274 inch)
Valve stem-to-guide 0.020-0.053 mm
clearance-intake (0.001-0.002 inch)
Valve stem-to-guide 0.035-0.068 mm
clearance-exhaust (0.001-0.003 inch)